B1 & B2 Technical Library

Review USP43-referenced bulk Vitamin B1, manufacturer COA and 99.3% independent Sigma assay. 1,500 kg in South Carolina, subject to prior sale.

Evaluate bulk Riboflavin for USP requirements through lot-specific COAs and independent Sigma QC. Two B2 lots, 1,500 kg total in South Carolina.

A documentation-led review of compendial references, manufacturer certificates and independent QC for bulk B1 and B2. Buyer qualification remains required.

B1 COA summary: batch Y02202501042, 99.5% manufacturer assay and 99.3% Sigma assay. Request controlled full-resolution quality documentation.

Review B2 lots 2025052801 and 2025052901 with 98.88% and 99.65% Sigma assays. Request lot-specific manufacturer COAs and independent QC reports.

Manufacturer COAs plus independent Sigma assays: B1 99.3%, B2 lots 98.88% and 99.65%. Review test scope and traceability before supplier approval.

Connect B1 batch Y02202501042 and B2 lots 2025052801/2025052901 to quantities, manufacture dates, expiry dates and source quality records.

Compare product identity, assay basis, moisture/LOD, impurities, compendial references and traceability—not purity percentages alone.

3,000 kg of documented B1 and B2 already warehoused in South Carolina. Review lot allocation, QA timing and domestic freight for commercial supply.

Documented thiamine mononitrate and riboflavin for qualified premix manufacturing requirements. Review lots, specifications and 3,000 kg U.S. inventory.